How can we change font size that suits to multiple resolutions in iOS and Android devices?it makes the UI elements maintain their original size. so they remain the same size even if the resolution changes and then we can use "Best Fit" for Text component which will make it appear better on the screen.

Objective-C is built upon the C , it’s important to know how to convert C based strings to NSString objects, and vice-versa.A C string is simply a series of characters (a one-dimensional character array) that is null-terminated, whereas an NSString object is a complete object with class methods, instance methods, etc.​

What is derived data in Xcode ?It’s a folder containing your build information, targets of debug and release as well as projects index.Why do we delete the derived data ?It helps to get rid of some code compilations issues, slow project and constant reindexing issue.

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I am Jitendra Gochhayat, an iOS developer,blogger, from Odisha,India.I write about Objective C tutorials,iOS interview Questions And Answers,swift tutorials and cocos2d-x sample codes to help the developers.